Expanding bullet

1. An expanding bullet having a one-piece structure, which bullet has a cylindrical section and a section that is essentially shaped as a truncated cone, with the bullet tip being situated at the end of the latter section, which end faces away from the cylindrical section, and at least one planned breaking point being formed in this section, wherein the section shaped as a truncated cone is divided into segments and has a channel that has a mouth in the region of the bullet tip, wherein the channel has a bell-shaped widened region, which has its greatest diameter in the region of the transition from the cylindrical section to the section shaped as a truncated cone.

2. The expanding bullet according to claim 1 , wherein at least one flaw is situated on a mantle surface of the section shaped as a truncated cone.

3. The expanding bullet according to claim 1 , wherein the mouth is formed as a conical diameter increase of the channel and/or the channel has a sectionally constant diameter between the mouth and the bell-shaped widened region.

4. The expanding bullet according to claim 2 , wherein the mouth is formed as a conical diameter increase of the channel and/or the channel has a sectionally constant diameter between the mouth and the bell-shaped widened region.

5. A method for producing an expanding bullet, which bullet has a cylindrical section and a section that is essentially shaped as a truncated cone, with the bullet tip being situated at the end of the latter section, which end faces away from the cylindrical section, and at least one planned breaking point being formed in this section, wherein the section shaped as a truncated cone is divided into segments and has a channel that has a mouth in the region of the bullet tip, wherein the channel has a bell-shaped widened region, which has its greatest diameter in the region of the transition from the cylindrical section to the section shaped as a truncated cone, wherein the expanding bullet is produced by means of massive forming.

6. The method according to claim 5 , wherein the expanding bullet is produced from wire, which is cut to length in a massive-forming machine and/or is center-punched at one end face with a graining tool.

7. The method according to claim 5 , wherein the expanding bullet is produced from copper wire, which is cut to length in a massive-forming machine and/or is center-punched at one end face with a graining tool.

8. The method according to claim 5 , wherein first an end face of a bullet blank is split into a plurality of segments and then a central recess is formed in the bullet blank starting from the split end face.

9. The method according to claim 6 , wherein first an end face of a bullet blank is split into a plurality of segments and then a central recess is formed in the bullet blank starting from the split end face.

10. The method according to claim 8 , wherein the end face of the bullet blank is split starting from a central depression introduced by the graining tool.

11. The method according to claim 8 , wherein the central recess is formed by a cylindrical pin which, starting from the split end face, penetrates into the bullet blank up to a specific depth and presses material towards the cylindrical section.

12. The method according to claim 8 , wherein the central recess is formed by a cylindrical pin which, starting from the split end face, penetrates into the bullet blank up to the transition from the cylindrical section to the section shaped as a truncated cone and presses material towards the cylindrical section.

13. The method according to claim 10 , wherein the central recess is formed by a cylindrical pin which, starting from the split end face, penetrates into the bullet blank up to a specific depth and presses material towards the cylindrical section.

14. The method according to claim 10 , wherein the central recess is formed by a cylindrical pin which, starting from the split end face, penetrates into the bullet blank up to the transition from the cylindrical section to the section shaped as a truncated cone and presses material towards the cylindrical section.

15. The method according to claim 8 , wherein a bullet mold is closed after the central recess has been formed, wherein the segments are bent over in the direction of a central axis of the bullet to form the channel and the bell-shaped widened region.

16. The method according to claim 8 , wherein a bullet mold is closed after the pin has been extracted from the bullet blank, wherein the segments are bent over in the direction of a central axis of the bullet to form the channel and the bell-shaped widened region.

17. The method according to claim 10 , wherein a bullet mold is closed after the central recess has been formed, wherein the segments are bent over in the direction of a central axis of the bullet to form the channel and the bell-shaped widened region.

18. The method according to claim 10 , wherein a bullet mold is closed after the pin has been extracted from the bullet blank, wherein the segments are bent over in the direction of a central axis of the bullet to form the channel and the bell-shaped widened region.

19. The method according to claim 11 , wherein a bullet mold is closed after the central recess has been formed, wherein the segments are bent over in the direction of a central axis of the bullet to form the channel and the bell-shaped widened region.

20. The method according to claim 15 , wherein at least one flaw is formed on a mantle surface of the section formed as a truncated cone when the bullet mold is closed.